If 6 = 68 degrees, find the measures of angles 4, 5 ,7

Jackie purchased 3 bottles of water and 2 cups of coffee for the family for $7.35. ryan bought 4 bottles of water and 1 cup of coffee for his family for 7.15. how much does each bottle of water cost? how much does each cup of coffee cost?

Give the equations of two different lines that are perpendicular to the line 3x + 4y = 7.

Which value of m will create a system of parallel lines with no solution? y = mx - 6 8x - 4y = 12